大坝渗控设计
design for seepage control of dam
可控渗氮装备
controlled nitriding equipment
渗控措施
method of prevent seepage
seepage control measure
渗控工程
seepage control engineering
渗控设计
seepage control design
design on seepage control schemes
渗控效果
the effect of seepage control
effect of Seepage Control
seepage control effect
渗控原则
Standard for Seepage Control
稀土催渗渗铝
accelerated aluminizing by RE elements
电气火灾监控探测器
electrical fire monitoring detector
漏电火灾监控探测器
residual current detector for fire supervisory
剩余电流式电气火灾监控探测器
residual current fire monitoring detector